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Reasons and treatment methods for valve not being closed tightly

Reasons and treatment methods for valve not being closed tightly

In the process of using the valve, there are often some problems that are puzzling, such as the valve is not tightly closed, what should we do? Under normal circumstances,if the valve is not closed tightly, check to see if the valve is closed in place,if

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The working principle of butterfly valve

The working principle of butterfly valve

Butterfly valve is a valve that opens and closes according to turn the stem while driving the disc rotation,in the cylindrical channel of the butterfly valve body, the disc type butterfly plate rotates around the axis, mainly rotating the disc plate 90° t

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How to determine whether a valve is leaking inside or outside?

How to determine whether a valve is leaking inside or outside?

During the use of the valve,we often encounter a variety of failures, the leakage of the valve is one of the most common failures, and the leakage of the valve is generally divided into internal leakage and external leakage. So, what is the difference bet

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The installation instructions of pneumatic butterfly valve

The installation instructions of pneumatic butterfly valve

Whether the installation of pneumatic butterfly valve is good will affect the efficiency of the equipment.And the maintenance of pneumatic butterfly valve is also related to the performance of the equipment.Improper installation or lack of maintenance wil

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The difference and comparison of bellows globe valve and ordinary globe valve

The difference and comparison of bellows globe valve and ordinary globe valve

Bellows globe valve is also called bellows seal globe valve,a metal barrier is formed between the fluid medium and the atmosphere, ensure zero leakage of the stem.Compared with the ordinary globe valve has the following advantages:

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The selection and application of electric globe valve

The selection and application of electric globe valve

Once the electric globe valve is in the open state, there is no contact between its seat and disc sealing surface, so its sealing surface mechanical wear is small.Since the seats and discs of most electric globe valves are relatively easy to repair or rep

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The installation and maintenance of electric ball valve

The installation and maintenance of electric ball valve

Electric ball valve is used to control the pipeline medium and can achieve the remote control of a valve, it’s an important equipment in industrial automation control system. Electric ball valve and other valves can not be used continually. After storage

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The difference and selection of electric wafer butterfly valve and electric flanged butterfly valve

The difference and selection of electric wafer butterfly valve and electric flanged butterfly valve

The electric butterfly valve is one of the most common valves in the pipeline, which is used to realize the on-off of various media in the pipeline system and to adjust the flow. It is widely used in many fields such as petroleum, chemical industry, meta

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The purpose and characteristic of butterfly valve

The purpose and characteristic of butterfly valve

Butterfly valve can be used to cut off the medium,and can also be used to adjust the flow,it is mostly used in medium low pressure and medium,large diameter valve.The current domestic parameters of butterfly valve are as follows:PN≤PN63;DN50-4800(The maxi

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A brief summary of the advantages and disadvantages of gate valve

A brief summary of the advantages and disadvantages of gate valve

What is gate valve? Gate valve is a kind of block valve, used to connect or cut off the medium in the pipeline.The opening and closing parts of the gate valve are driven by the valve stem and move in a straight line along the seat (sealing surface). So wh

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The classification and characteristics of ball valve

The classification and characteristics of ball valve

The ball driven by the stem and around the axis of the stem to do rotating movement of the valve,known as the ball valve.So what are the classification of ball valves? What are the characteristics of ball valves? Do you know these?

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The purpose and characteristics of globe valve

The purpose and characteristics of globe valve

The valve disc is driven by the stem,along the axis of the sealing surface of the seat to do lifting movement and achieve the purpose of opening and closing the valve,known as the globe valve. So what is the purpose and characteristics of globe valve? Bun

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Principle of Knife gate valve

Principle of Knife gate valve

Introduction of Knife gate valve principle
The knife gate valve mainly includes three parts, which are the control handwheel of the knife gate valve, the valve body, and the internal control device. W

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There are several connect types for the valve

There are several connect types for the valve

As a valve buyer, you should often be asked whether you want a wafer type or a flange type, and so on. These questions about valve connection types, so do you know how many connection types ?
1. Flang

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Commonly used valves in petrochemical industry

Commonly used valves in petrochemical industry

In petrochemical plants, valves are an important part of petrochemical pipeline systems. In petrochemical pipelines, most of the medium that in contact with the valve is inflammable, explosive, toxic

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Difference between wafer butterfly valve and grooved butterfly valve

Difference between wafer butterfly valve and grooved butterfly valve

What is the difference between wafer butterfly valve and grooved butterfly valve? Bundor Valves introduce to you.

There are many classifications of wafer butterfly valves, and their uses are also v

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The difference between fire pipeline gate valve and butterfly valve

The difference between fire pipeline gate valve and butterfly valve

In the fire pipeline, gate valve and butterfly valve are two commonly used valves, so what is the difference between these two valves?

1. Butterfly valves are basically installed on the outlet of the

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How to connect wafer butterfly valve ?

How to connect wafer butterfly valve ?

How to connect wafer butterfly valve ?

There is no flange on wafer butterfly valve. When you install valve, clamp the valve between two flanges of the pipeline, then use bolts to fix the flanges. Waf

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How to choose a steam valve

How to choose a steam valve

The valve opening and closing parts of the steam valve and the shape of the valve flow channel make the valve have certain flow characteristics. This must be taken into account when choosing a steam v

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The difference between handle operated butterfly valve and worm gear operated  butterfly valve

The difference between handle operated butterfly valve and worm gear operated  butterfly valve

Question: Hello, Bundor Valves, I need to purchase several butterfly valves, for water passing, pressure 10 kg, size DN50, skilled workers recommend me to use handle operated butterfly valve and worm

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What is a double eccentric butterfly valve

What is a double eccentric butterfly valve

In this article, Bundor Valve will talk to you about double eccentric butterfly valve. When it comes to double eccentric butterfly valve, we must talk about this double eccentric structure.

The so-ca

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Valve Installation Precautions

Valve Installation Precautions

Whether the valve is installed well or not is related to whether it can be used normally and safely later, so the precautions when installing the valve must be paid attention to, so as not to cause fu

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Precautions for valve use

Precautions for valve use

Improper use and operation of the valve will lead to valve damage and greatly shorten the service life of the valve; serious, irreversible production accidents may occur, endangering people or the env

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What kind of valve will be used in the fire water system

What kind of valve will be used in the fire water system

What kind of valve will be used in the fire water system? Common valves for fire water systems include resilient seat gate valves, signal butterfly valves, signal gate valves, check valves, ball valve

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The main purpose of the gate valve

The main purpose of the gate valve

What is the main purpose of the gate valve? The gate valve has a wide range of applications. Generally, it is used for blocking devices with a diameter of DN ≥ 50mm, and sometimes gate valves are a

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